INTDOK is a suitable addition for SPI and PGI interferometers as well as other interferometers with a video output, if a documentation is required.
INTDOK, as an extension for the visual flatness measurement, makes the documentation of fringe patterns from SPI and PGI interferometers possible. In order to document measurements, the interferograms can be saved with a comment of several lines and printed. Additionally, the interferograms can be exported as Bitmap. A horizontal or vertical grid with arbitrary distances can be overlayed by the user, this facilitates the estimation of the flatness.